Create a Visualforce page without the standard Salesforce header and display an image using the Visualforce image component.
The page must be named 'DisplayImage'.
It must NOT display the standard Salesforce header.
It must use a Visualforce apex:image component to display this image - https://developer.salesforce.com/files/salesforce-developer-network-logo.png

<apex:page showHeader="false" title='DisplayImage'> 
    <apex:pageBlock >
        <apex:image url="https://developer.salesforce.com/files/salesforce-developer-network-logo.png"/>
    </apex:pageBlock> 
</apex:page>

Challenge Not yet complete... here's what's wrong: 
The 'DisplayImage' page was not found.

Hello Community, 

Need some assistance with and error on a VisualSource Page Trailhead Challenge

Here is the Criteria:
Create a page which displays a subset of Opportunity fields using apex:outputField components. Bind the Name, Amount, Close Date and Account Name fields to the apex:outputField components.The page must be named 'OppView'.
It must reference the Opportunity standard controller.
It must have an apex:outputField component bound to the Opportunity Name.
It must have an apex:outputField component bound to the Opportunity Amount.
It must have an apex:outputField component bound to the Opportunity Close Date.
It must have an apex:outputField component bound to the Account Name of the Opportunity.

Here is the error I'm receiving
Challenge not yet complete... here's what's wrong: 
The page does not include a apex:outputField component bound to the opportunity name

Here is my code for the page:
<apex:page standardController="Opportunity" >
    
    <apex:pageBlock title="Opportunities">
        <apex:pageBlockSection>
        <apex:outputField value="{! Opportunity.Account.Name}"/>
        <apex:outputField value="{! Opportunity.Amount }"/>
        <apex:outputField value="{! Opportunity.CloseDate }"/>
        <apex:outputField value="{! Opportunity.Accountid }"/>
        
         </apex:pageBlockSection>
    </apex:pageBlock>
</apex:page>

Please Advise Community!!